IECM Sistema Electrónico (SEI)

Through this application developed by the Electoral Institute of Mexico City, you can register as an additional way to share your opinion and vote via your mobile device for community participation committees and to comment on the participatory budget. Registration: from 9:00 a.m. on March 23 to 5:00 p.m. on April 15, 2026. Electronic Opinion: from 9:00 a.m. on April 20 to 5:00 p.m. on April 30, 2026. Opinion: from 9:00 a.m. on April 20 to 5:00 p.m. on April 30, 2026.